SCI 21-22 General Catalog

Super MultiDrills WGS Type

■ General Features The J flutes of the Super MultiDrill WGS have been tuned for improved chip breaking capabilities during drilling of thin sheets. Excellent sharpness prevents work hardening from drilling. The special double margin structure also achieves stable hole diameter accuracy.

J

■ Features and Applications J flutes (groove shape) have been tuned to create a specialized shape for drilling of thin sheets. The special double margin structure also achieves stable hole diameter accuracy.

Special double margin

Special cutting edge shape

Optimized groove shape

■ Target Workpieces

[Common automotive components] ·Bearing hub (inner and outer rings) ·Knuckle ·Differential ring ·Components such as bolt holes in automobile flange parts

1.5D or less

Drilling of thin sheets (thickness 1.5D or less)

■ Cutting Performance

Ɣ Reduces hardening of the workpiece surface during drilling

Work Material: S53C Cutting Conditions: v

Conventional Tool Tool Life Judgment Line

WGS Type

400

c =230 SFM,

f =0.008 IPR

H =0.512”

After 500 pcs.

After 1,000 pcs.

300

No. of Workpieces (pcs)

0

500

1,000

Ɣ Stable hole expansion tolerance

Ɣ Better chip breaking capabilities

0.05

Entry

Intermediate

Through

0.04

0.03

0.02

0.01

0.00

3 100 200 300 400 500 600 700 800 900 1,000 1,100

Conventional Tool

WGS Type

Conventional single margin product

Double margin WGS Type

Work Material: SUJ2 Cutting Conditions: v c =262 SFM, f =0.01 IPR H =.512”

Work Material: S50C Cutting Conditions: v c =262 SFM, f =0.01 IPR H =0.630”

J56

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